CN203012855U - Intelligent gas meter with temperature compensation function - Google Patents
Intelligent gas meter with temperature compensation function Download PDFInfo
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- CN203012855U CN203012855U CN 201220662903 CN201220662903U CN203012855U CN 203012855 U CN203012855 U CN 203012855U CN 201220662903 CN201220662903 CN 201220662903 CN 201220662903 U CN201220662903 U CN 201220662903U CN 203012855 U CN203012855 U CN 203012855U
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Abstract
The utility model discloses an intelligent gas meter with a temperature compensation function. The intelligent gas meter with the temperature compensation function comprises a sampling sensor, a temperature sensor, a pressure sensor, a display module and a power module, wherein the sampling sensor, the temperature sensor, the pressure sensor, the display module and the power module are in electric signal connection with a master control module, and the master control module comprises a compensation module and a prepayment / fee deduction module. The temperature sensor is used for detecting real-time temperature data of gas, and the pressure sensor is used for detecting real-time pressure data of the gas. The sampling sensor is used for converting rotation information of a mechanical counter into pulse electric signals. The master control module is used for receiving the real-time temperature data, the real-time pressure data and the pulse electric signals, obtaining compensation parameters corresponding to gas flow at the real-time temperature and under the real-time pressure through the compensation module, sending the compensation parameters to the prepayment / fee deduction module for processing, and finally displaying the unit price, which is compensated, of the gas visually through the display module. By means of the intelligent gas meter with the temperature compensation function, the unit price of the used gas and the remaining amount can be displayed to a user visually and accurately, and the situation that measurement data of the gas under working conditions and corresponding measurement data of the gas under standard conditions are not uniform cannot be caused.
Description
Technical field
The utility model relates to the gas metering technical field, is specially a kind of gas meter, flow meter measuring apparatus of electromechanical integration, particularly a kind of Intelligent diaphragm gas meter with temperature compensation function.
Background technology
China's latitude is crossed over larger, and between different regions, temperature, pressure also have no small difference.In addition, to the residing Various Seasonal of areal, temperature, pressure also can be different.For gas company, due to the volume of combustion gas and temperature and pressure closely related, again because temperature, pressure unstable, so can only formulate a combustion gas clearing standard of compromise relatively, that is: the mark condition of gas metering is, 20 ℃ of temperature, the volume during absolute pressure 101.3kPa.But in fact diaphragm gas meter is worked under off-rating all the time, therefore inevitably can produce error in dipping.Will cause in different phase like this, gas company and gas user incur loss respectively.For example: in summer, because temperature raises, the combustion gas heat expansion, combustion gas used is through dilution under existing standard for the user, and gas user incurs loss; And in the winter time, because temperature reduces, the combustion gas shrinkage, the combustion gas that gas company is supplied with under existing standard is long-pending through concentrated, and gas company incurs loss.
For the problems referred to above, technical scheme used in the prior art has respectively:
1, for the mechanical temperature compensation device of Household diaphragm gas meter: increase temperature-sensitive device in the family expenses core of membrane type gas meter, adjustment is controlled in the motion of movement, the movement measuring accuracy is changed.That is to say, by changing the compensation method of mechanical mechanism and then regulating gas metering.Although this kind method realizes temperature compensation to a certain extent, compensation range is limited, and stability is not high enough, can't realize accurate compensation.
2, for electronic temp, the pressure compensator of industry and commerce gas meter, flow meter: adopt the method that installs electronic temp, pressure correction instrument on the basis of mechanical type general gas table additional, the running status of Real Time Monitoring base table, collecting temperature, pressure data, and the operating mode volume metering is revised, obtain marking accurately the condition volume data.Although this mode can be carried out temperature, pressure compensation simultaneously, and wide ranges, precision are high, and this correction instrument cost is higher.In addition, this kind mode produces two kinds of numerical value, and namely gas user is the operating mode accumulative total tolerance reading for the base table mechanical counter, and gas company is by the mark condition accumulative total tolerance reading with the electronics liquid crystal display, and charges with this reading.The problem that produces like this is that two kinds of readings that there are differences cause that easily the user is to the misunderstanding of gas company expenses standard.
Above-mentioned two kinds of compensatory devices all compensate the metering result of gas volume, also need to detect for the measuring accuracy after compensation again.And corresponding checkout equipment is complicated, and detection efficiency is low, causes production cost to increase.In sum, can't reach according to existing compensatory device the effect that makes gas user and gas company all be satisfied with.
The utility model content
In view of this, the utility model provides a kind of intelligent gas meter with temperature compensation, can be by the compensation of system to combustion gas, and then provide an accurate combustion gas unit price to the user.
For solving above technical matters, the technical solution of the utility model is, a kind of intelligent gas meter with temperature compensation comprises watchcase, and watchcase is provided with air intake opening, gas outlet, is provided with valve between air intake opening and watchcase; The inside of watchcase is provided with mechanical counter, and this mechanical counter rotates counting by the pressure differential of combustion gas between air intake opening and gas outlet; Be provided with sampling sensor on described mechanical counter; Be provided with temperature sensor in described watchcase; Be provided with the main control module that is connected with power module in described watchcase, this main control module comprises that compensating module, the amount of money prepays/deduct fees module; Be provided with display module on described watchcase; Described temperature sensor, described sampling sensor and described display module all are connected with the main control module electric signal; Wherein, temperature sensor is for detection of the real time temperature data of combustion gas, and these real time temperature data are sent to main control module; Sampling sensor is used for the rotation of mechanical counter is converted into pulse signal, and it is transferred to main control module; Main control module is used for receiving real time temperature data and pulse signal, and obtain the temperature compensation parameter of gas flow under real time temperature by compensating module, sending to the amount of money to prepay/deduct fees module this temperature compensation parameter again processes, combustion gas unit price and remaining sum through temperature compensation outwards intuitively shows by display module the most at last, and display module also can outwards show real time temperature.
Further, temperature compensation parameter default in described compensating module is take 20 ℃ as benchmark, 1 ℃ of the every rising of temperature, and the combustion gas unit price reduces by 3.4 ‰; 1 ℃ of the every decline of temperature, the combustion gas unit price improves 3.4 ‰.
Further, also be provided with pressure transducer on the gas circuit of described gas meter, flow meter, pressure transducer detects the real-time pressure data of combustion gas, and these real-time pressure data are sent to main control module; Main control module receives real-time pressure data and described pulse signal, and obtain the pressure compensation parameter of gas flow under real-time pressure by compensating module, jointly sending to the amount of money to prepay/deduct fees module this pressure compensation parameter and described temperature compensation parameter again processes, combustion gas unit price and remaining sum through temperature and pressure superposition compensation outwards intuitively shows by display module the most at last, and display module also can show real time temperature and real-time pressure.
Further, pressure compensation parameter default in described compensating module is take 101.3kPa as benchmark, the every rising 100Pa of pressure, and the combustion gas unit price improves 1 ‰; The every decline 100Pa of pressure, the combustion gas unit price reduces by 1 ‰.
Further, also comprise data memory module in described main control module, connect by electric signal between display module and data memory module.Wherein, data memory module is used for remaining sum, combustion gas unit price information, temperature information in storage list, and display module is used for inquiry and transfers the information on memory module and outwards show.
Further, described valve is electric control valve, and electric control valve is connected with main control module, when the amount of money prepay/deduct fees advance payment in module reduce be zero after, main control module sends shutdown signal to electric control valve, the electric control valve valve-off stops air feed.
Further, described watchcase is provided with the IC-card socket, is provided with accordingly the IC-card read module, and this IC-card read module and the amount of money are prepay/deducted fees modular telecommunications and number is connected.
Compared with prior art, the relevant parameter that the utility model records for temperature or temperature and pressure transducer, after conversion by compensating module, prepaying/deduct fees module by the amount of money again adjusts accordingly, final in the situation that do not change the volume metering result, show a combustion gas unit price more directly perceived and accurate by display module to the user, display module can also be showed prepaid balance and real time temperature to the user simultaneously.Because only detecting compensation for temperature and pressure transducer, the utility model gets final product, finally show to the user with the compensating form of combustion gas unit price, and needn't other structures of gas meter, flow meter be changed, so the production cost that compensation tests device structure of the present utility model is simple, easy to operate, efficient is high and corresponding is also lower.In addition, what show to the user through over-compensation due to the utility model is final combustion gas unit price, the gas dosing result of combustion gas is changed, so can not cause operating mode and the skimble-scamble situation of mark condition correspondence combustion gas volume metering result.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of the utility model embodiment one;
Fig. 3 is the structural representation of the utility model embodiment two.
In figure: 1, lower house, 2, the IC-card socket, 3, mechanical counter, 4, display module, 5, temperature sensor, 6, pressure transducer, 7, valve, 8, air intake opening, 9, upper shell, 10, main control module, 11, sampling sensor, 12, power module, 13, compensating module, 14, the amount of money prepays/deduct fees module.
Embodiment
Core thinking of the present utility model is that sensor and corresponding compensating module by corresponding temperature and pressure is set make gas meter, flow meter at different temperature and pressure state, must carry out corresponding compensation for the combustion gas unit price.Provide a kind of fairer and more reasonable combustion gas expenses standard as gas company and user.
In order to make those skilled in the art understand better the technical solution of the utility model, the utility model is described in further detail below in conjunction with the drawings and specific embodiments.
Referring to Fig. 1, a kind of intelligent gas meter with temperature pressure compensation comprises the watchcase that is comprised of upper shell 9 and lower house 1.Watchcase is provided with one group of air intake opening 8 and gas outlet, and is provided with valve 7 between air intake opening 8 and watchcase.Be provided with mechanical counter 3 in watchcase inside.Combustion gas enters gas meter, flow meter by air intake opening 8 and valve 7, and under the promotion of pressure differential between air intake opening 8 and gas outlet, gas meter, flow meter metering gear train is realized running.And then driving the 3 running meterings of gas meter, flow meter mechanical counter, the real plate of mechanical count table is embedded on watchcase.
Be provided with sampling sensor 11 on mechanical counter 3.Be provided with temperature sensor 5 and pressure transducer 6 on gas meter, flow meter.Wherein, temperature sensor 5 can be arranged on the optional position in watchcase, as long as can accurately record real time temperature; Pressure transducer 6 can be arranged on the optional position in whole gas circuit in watchcase, as long as can accurately record real-time pressure.Be provided with in watchcase inside the main control module 10 that is connected with power module 12.Be provided with display module 4 on watchcase, this display module 4 can be liquid crystal display.
Due to independently temperature sensor 5 can be set in watchcase, or set temperature sensor 5 and pressure transducer 6 simultaneously, so now carry out respectively respective description for two kinds of set-up modes.
Embodiment one
Referring to Fig. 2, for the gas meter, flow meter that only is provided with temperature sensor 5, the concrete syndeton of each module is as follows: main control module 10 comprises that compensating module 13, the amount of money prepays/deduct fees module 14.Temperature sensor 5, sampling sensor 11 and display module 4 all are connected with main control module 10 electric signal.Wherein, temperature sensor 5 is for detection of the real time temperature of combustion gas, and these real time temperature data are sent to main control module 10.Sampling sensor 11 is used for the rotation of mechanical counter 3 is converted into pulse signal, and is transferred to main control module 10.10 of main control modules are used for receiving real time temperature data and pulse signal, and obtain the temperature compensation parameter of gas flow under real time temperature by compensating module 13, this temperature compensation parameter is sent to the amount of money to prepay/deduct fees module 14 again and process, compensation result intuitively shows to the user by display module 4 the most at last.Include the remaining sum of combustion gas unit price, prepayment in compensation result, can also show to the user the real time temperature of surveying.
Temperature compensation parameter in compensating module 13 determines that principle is as follows in the present embodiment:
Well-known is that in the situation that gaseous mass is constant, gas pressure intensity, volume, temperature satisfy the Ideal-Gas Equation:
P in formula
1, p
2---the gas absolute pressure under 1,2 states, unit is: Pa;
V
1, V
2---the gas volume under 1,2 states, unit is: m
3
T
1, T
2---the aerothermodynami temperature under 1,2 states, unit is: K.
Do not considering that pressure changes, namely under the isobaric prerequisite that changes, temperature compensation parameter carries out as follows:
V
1/ T
1=V
2/ T
2Obtain: V
2=V
1* (T
2/ T
1)
In formula: V
1---the volume (20 ℃) under-standard temperature;
V
2---the volume under working temperature;
T
1---standard temperature (20 ℃);
T
2---working temperature.
(1) suppose: T
1=20 ℃, T
2=T
1+ △ T=20+1=21 ℃
: T
2/ T
1=(273.16+21)/(273.16+20)=1.0034
Gas volume V
2=1.0034*V
1, expanded 3.4 ‰ when namely the volume of gas is than 20 ℃ 21 ℃ the time;
(2) suppose: T
1=20 ℃, T
2=T
1+ △ T=20-1=19 ℃
: T
2/ T
1=(273.16+19)/(273.16+20)=0.9966
Gas volume V2=0.9966*V1 has reduced 3.4 ‰ when namely the volume of gas is than 20 ℃ 19 ℃ the time;
From the above, when not considering that pressure changes, temperature is take 20 ℃ as benchmark, 1 ℃ of the every rising of temperature, and the combustion gas unit price should reduce by 3.4 ‰; 1 ℃ of the every decline of temperature, the combustion gas unit price should improve 3.4 ‰.
Embodiment two
Referring to Fig. 3, for the gas meter, flow meter that is provided with simultaneously temperature sensor 5 and pressure transducer 6 on valve 7, the concrete syndeton of each module is as follows: main control module 10 comprises that compensating module 13, the amount of money prepays/deduct fees module 14.Temperature sensor 5, pressure transducer 6, sampling sensor 11 and display module 4 all are connected with main control module 10 electric signal.Wherein temperature sensor 5 detects for combustion gas real time temperature of living in, and pressure transducer 6 detects for the residing real-time pressure of combustion gas.And these real time temperature data and real-time pressure data are sent to main control module 10.Main control module 10 receives the pulse signal that real time temperature data, real-time pressure data and sampling sensor 11 send, and obtain temperature compensation parameter and pressure compensation parameter by compensating module 13, jointly send to the amount of money to prepay/deduct fees module 14 above-mentioned two compensating parameters again and process, combustion gas unit price, prepayment remaining sum, real time temperature and the real-time pressure through the stack compensation intuitively shows to the user by display module 4 the most at last.
Pressure compensation parameter in compensating module 13 determines that principle is as follows in the present embodiment:
Be in the situation that gaseous mass is constant equally, gas pressure intensity, volume, temperature satisfy the Ideal-Gas Equation:
P in formula
1, p
2---the gas absolute pressure under 1,2 states, unit is: Pa;
V
1, V
2---the gas volume under 1,2 states, unit is: m
3
T
1, T
2---the aerothermodynami temperature under 1,2 states, unit is: K.
Do not considering temperature variation, under the prerequisite that namely isothermal changes, the pressure compensation parameter is carried out as follows:
P
1* V
1/=P
2V
2Obtain: V
2=V
1* (P
1/ P
2)
In formula: V
1---the volume (101.325kPa) under-normal pressure;
V
2---the volume under working condition pressure;
T
1---normal pressure (101.325kPa);
T
2---working condition pressure.
(1) suppose the gauge pressure of air feed: P
1=2000Pa is increased to P
2=P
1+ △ P=2000+100=2100Pa
The value of standard atmospheric pressure (1atm) is often got 101.3kPa=101300Pa in general calculating
: P
1/ P
2=(101300+2000)/(101300+2100)=0.999
Gas volume V
2=0.999*V
1, namely the gas volume during the 2000Pa supply gas pressure is when 2100Pa compressed 1 ‰;
(2) suppose the gauge pressure of air feed: P
1=2000Pa, P
2=P
1+ △ P=2000-100=1900Pa
: P
1/ P
2=(101300+2000)/(101300+1900)=1.001
Gas volume V
2=1.001*V
1, namely the gas volume during the 2000Pa supply gas pressure when 1900Pa volumetric expansion 1 ‰;
From the above, do not considering temperature variation, pressure is take 101.300kPa as benchmark, the every rising 100Pa of pressure, and the combustion gas unit price should improve 1 ‰; The every decline 100Pa of pressure, the combustion gas unit price should reduce by 1 ‰.
Can find out by above-mentioned two embodiment, the utility model is by independent set temperature sensor 5, and common set temperature sensor 5 and pressure transducer 6, all can realize the compensation to the combustion gas unit price.This compensation way is in the situation that do not change the gas meter, flow meter self structure, processes by the data that each side is recorded, and finally obtains accurate compensation result.Because this result is to show to the user with combustion gas unit price and prepayment remaining sum, irrelevant with the metering result of combustion gas volume used, so easilier accepted by the user.
For the utility model, can adopt IC-card to supplement with money in the use of carrying out amount of money prepayment.For this point, IC-card socket 2 can be set on watchcase, be provided with accordingly the IC-card read module, this IC-card read module is prepay/is deducted fees module 14 electric signal with the amount of money and is connected.Realize prepaying by IC-card the purpose of combustion gas expense with this.
In order to facilitate user's query history combustion gas inventory, also comprise data memory module in main control module 10, connect by electric signal between display module 4 and data memory module.Wherein, data memory module is used for remaining sum, unit price information and temperature information in storage list, and the information that display module is used for transferring on memory module is inquired about to realize the user.
In order to ensure the interests of gas company, avoid the user to continue to use combustion gas after advance payment uses, so valve 7 is set to electric control valve.This electric control valve is connected with main control module 10, when the amount of money prepay/deduct fees advance payment in module reduce be zero after, main control module 10 sends shutdown signal to electric control valve, electric control valve is closed and is stopped air feed.
Be below only preferred implementation of the present utility model, should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection domain of the present utility model should be as the criterion with the claim limited range.For those skilled in the art, within not breaking away from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (7)
1. the intelligent gas meter with temperature compensation, comprise watchcase, and watchcase is provided with air intake opening, gas outlet, is provided with valve between air intake opening and watchcase; The inside of watchcase is provided with mechanical counter, and this mechanical counter rotates counting by the pressure differential of combustion gas between air intake opening and gas outlet; Be provided with sampling sensor on described mechanical counter; It is characterized in that: be provided with temperature sensor in described watchcase; Be provided with the main control module that is connected with power module in described watchcase, this main control module comprises that compensating module, the amount of money prepays/deduct fees module; Be provided with display module on described watchcase; Described temperature sensor, described sampling sensor and described display module all are connected with the main control module electric signal; Wherein, temperature sensor is for detection of the real time temperature data of combustion gas, and these real time temperature data are sent to main control module; Sampling sensor is used for the rotation of mechanical counter is converted into pulse signal, and it is transferred to main control module; Main control module is used for receiving real time temperature data and pulse signal, and obtain the temperature compensation parameter of gas flow under real time temperature by compensating module, sending to the amount of money to prepay/deduct fees module this temperature compensation parameter again processes, combustion gas unit price and remaining sum through temperature compensation outwards intuitively shows by display module the most at last, and display module also can outwards show real time temperature.
2. intelligent gas meter as claimed in claim 1 is characterized in that: temperature compensation parameter default in described compensating module is take 20 ℃ as benchmark, 1 ℃ of the every rising of temperature, and the combustion gas unit price reduces by 3.4 ‰; 1 ℃ of the every decline of temperature, the combustion gas unit price improves 3.4 ‰.
3. intelligent gas meter as claimed in claim 1 is characterized in that: also be provided with pressure transducer on the gas circuit of described gas meter, flow meter, pressure transducer detects the real-time pressure data of combustion gas, and these real-time pressure data are sent to main control module; Main control module receives real-time pressure data and described pulse signal, and obtain the pressure compensation parameter of gas flow under real-time pressure by compensating module, jointly sending to the amount of money to prepay/deduct fees module this pressure compensation parameter and described temperature compensation parameter again processes, combustion gas unit price and remaining sum through temperature and pressure superposition compensation outwards intuitively shows by display module the most at last, and display module also can show real time temperature and real-time pressure.
4. intelligent gas meter as claimed in claim 3 is characterized in that: pressure compensation parameter default in described compensating module is take 101.3kPa as benchmark, the every rising 100Pa of pressure, and the combustion gas unit price improves 1 ‰; The every decline 100Pa of pressure, the combustion gas unit price reduces by 1 ‰.
5. intelligent gas meter as described in any one in claim 1-4, is characterized in that: also comprise in described main control module data memory module connecting between display module and data memory module by electric signal.Wherein, data memory module is used for remaining sum, combustion gas unit price information, temperature information in storage list, and display module is used for inquiry and transfers the information on memory module and outwards show.
6. intelligent gas meter as claimed in claim 1, it is characterized in that: described valve is electric control valve, electric control valve is connected with main control module, when the amount of money prepay/deduct fees advance payment in module reduce be zero after, main control module sends shutdown signal to electric control valve, and the electric control valve valve-off stops air feed.
7. intelligent gas meter as claimed in claim 1, it is characterized in that: described watchcase is provided with the IC-card socket, is provided with accordingly the IC-card read module, and this IC-card read module and the amount of money are prepay/are deducted fees modular telecommunications and number is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662903 CN203012855U (en) | 2012-12-05 | 2012-12-05 | Intelligent gas meter with temperature compensation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220662903 CN203012855U (en) | 2012-12-05 | 2012-12-05 | Intelligent gas meter with temperature compensation function |
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| Publication Number | Publication Date |
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| CN203012855U true CN203012855U (en) | 2013-06-19 |
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ID=48604428
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|---|---|---|---|
| CN 201220662903 Expired - Fee Related CN203012855U (en) | 2012-12-05 | 2012-12-05 | Intelligent gas meter with temperature compensation function |
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| Country | Link |
|---|---|
| CN (1) | CN203012855U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944268A (en) * | 2012-12-05 | 2013-02-27 | 四川海力智能科技有限公司 | Intelligent gas meter with temperature compensation |
-
2012
- 2012-12-05 CN CN 201220662903 patent/CN203012855U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102944268A (en) * | 2012-12-05 | 2013-02-27 | 四川海力智能科技有限公司 | Intelligent gas meter with temperature compensation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610052 Sichuan city of Chengdu province Chenghua District Development Zone Longtan urban industrial into relief road No. 1 Patentee after: SICHUAN HAILI INTELLIGENT & TECHNOLOGY CO., LTD. Address before: 610052 Sichuan city of Chengdu province Chenghua District Development Zone Longtan urban industrial into relief road No. 1 Patentee before: Sichuan Haili Intelligent & Technology Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130619 Termination date: 20171205 |
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| CF01 | Termination of patent right due to non-payment of annual fee |